1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Free_Kalibri [48]
2 years ago
13

Y = -8 Y = -2x - 12 Solve this equation by substitution

Mathematics
1 answer:
aliina [53]2 years ago
5 0

Answer:

x = - 2

Step-by-step explanation:

- 8 = - 2x - 12

- 8 + 12 = - 2x - 12 + 12

- 2x = 4

- 2x ÷ - 2 = 4 ÷ - 2

x = - 2

You might be interested in
The difference of two numbers is 90 and their quotient is 10
bija089 [108]
To solve this, set up two equations using the information you're given. Let's call our two numbers a and b:
1) D<span>ifference of two numbers is 90
a - b (difference of two numbers) = 90

2) The quotient of these two numbers is 10
a/b (quotient of the two numbers) = 10


Now you can solve for the two numbers.
1) Solve the second equation for one of the variables. Let's solve for a:
a/b = 10
a = 10b

2) Plug a =10b into the first equation and solve for the value of b:
a - b = 90
10b - b = 90
9b = 90
b = 10

3) Using b = 10, plug it back into one of the equations to find the value of a. I'll plug it back into the first equation:
a - b = 90
a - 10 = 90
a = 100

-------

Answer: The numbers are 100 and 10</span>
3 0
3 years ago
A tour bus travels 2,160 miles in 36 hours. What is the average distance the bus travels in one hour?
Yuki888 [10]
60 miles because 2160 divided by 36 = 60
6 0
2 years ago
Read 2 more answers
Which properties justify the steps taken to solve the system? {3x−4y=9 2x+8y=6 Drag the answers into the boxes to match each ste
anzhelika [568]
1.) 6x-8y=18, 2x+8y=6 → Multiplication property of equality

2.) 8x=24 → Addition property of equality

3.) x=3 → Division property of equality

4.) 3(3)-4y=9 → Substitution property of equality

5.) 9-4y=9 → Simplify

6.) -4y=0 → Subtraction property of equality 

7.) y=0 → Division property of equality
4 0
3 years ago
Read 2 more answers
Given the diagram below, Hannah writes m 1+ m 4 = 180°, m 2 + m 5 = 180°, and m 3+ m 26 = 180°. Which of the following reasons a
Paladinen [302]

Answer:

A. Definition of linear pair

Step-by-step explanation:

A linear pair of angles is formed when two lines intersect. Since angle on a straight line = 180°, angles of a linear pair sum up to 180°.

angles 1 and 4, angles 2 and 5, angles 3 and 6 are all linear pairs. Each pair = 180°.

4 0
3 years ago
Use the given vertices to graph quadrilateral TUVW and its image after a dilation centered at the origin with scale factor
Mademuasel [1]

Answer:We know that the dilation transformation of a figure either shrink or expand the original figure depending on the scale factor of the dilation.

As here we have scale factor=3>1.

Hence, the dilation  changes the original will expand the original figure.

Hence, each of the coordinate of a figure get multiplied by 3.

Hence, the co

ordinates of the image are given as:

i.e. A(0,0) → A'(0,0)

B(2,3) → B'(6,9)

C(1,-2) → C'(3,-6)

D(-3,-3) → D'(-9,-9)

Step-by-step explanation:

5 0
1 year ago
Other questions:
  • What is the y-value of tan(x) when x = 90°?<br><br> -1<br><br> 0<br><br> 1<br><br> does not exist
    13·1 answer
  • PLZZ HELP ASAP!!!!!
    7·2 answers
  • Six more than the product of 21 and a number
    12·1 answer
  • The largest colony of black-tailed prairie dogs contains 400 million prairie dogs on 24,000 square miles of land. Using these es
    8·2 answers
  • I need help with these questions can someone plz help me
    10·1 answer
  • Simplify 4x + 7 + 11x
    13·1 answer
  • What is -1/9(5g-3)+2/9g Simplified
    11·1 answer
  • Select all ordered pairs that correspond to input-output pairs of the function y = −7x + 6.
    11·1 answer
  • PLEASE HELP ME FAST!
    10·1 answer
  • I haven’t really understood this yet
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!